Transcript: Newton was the first to describe the components of radiation emitted by the sun. He took the sun’s light and dispersed it in wavelength with a prism and created the visible spectrum. The visible spectrum runs through the colors of the rainbow: red, orange, yellow, green, blue, indigo, violet, often creating the mnemonic Roy G. Biv. This sequence from red to blue is also a sequence of decreasing wavelength and increasing frequency.